diff --git a/openexr.spec b/openexr.spec
index 533d1f7..3e71230 100644
--- a/openexr.spec
+++ b/openexr.spec
@@ -22,7 +22,7 @@ Name:           openexr
 Summary:        Utilities for work with HDR images in OpenEXR format
 Version:        1.7.0
 Release:        8
-License:        BSD3c(or similar) ; GPLv2+
+License:        BSD-3-Clause ; GPL-2.0+
 Group:          Productivity/Graphics/Other
 Url:            http://www.openexr.com/
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
@@ -58,7 +58,7 @@ contains a set of utilities to work with this format.
 * exrmultiview, combine two or more images into one multi-view
 
 %package -n libIlmImf6
-License:        BSD3c(or similar) ; GPLv2+
+License:        BSD-3-Clause ; GPL-2.0+
 Group:          Development/Libraries/C and C++
 Summary:        Library to Handle EXR Pictures in 16-Bit Floating-Point Format
 # provide also the most expected symbol
@@ -71,7 +71,7 @@ Industrial Light & Magic for use in computer imaging applications.
 This package contains libIlmImf.so.6
 
 %package -n libopenexr-devel
-License:        BSD3c(or similar) ; GPLv2+
+License:        BSD-3-Clause ; GPL-2.0+
 Group:          Development/Libraries/C and C++
 Summary:        Library to Handle EXR Pictures (16-bit floating-point format)
 Obsoletes:      OpenEXR-devel <= 1.6.1
@@ -88,7 +88,7 @@ Industrial Light & Magic for use in computer imaging applications.
 This package contains header files.
 
 %package doc
-License:        BSD3c(or similar) ; GPLv2+
+License:        BSD-3-Clause ; GPL-2.0+
 Group:          Development/Libraries/C and C++
 Summary:        Library to Handle EXR Pictures in 16-Bit Floating-Point Format
 Obsoletes:      OpenEXR-doc <= 1.6.1